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Article History

Received: 15 February 2018

Accepted: 11 July 2019

First Online: 19 July 2019

Ethics approval and consent to participate

: This study used publicly available datasets, hence consent from individuals was not required. Thus, ethics approval was not required.

: The study contains no information that identifies individuals so consent for publication is not applicable.

: The authors (ISA, CIW, TJW) declare that they have no competing interests. CIW was the Deputy Editor of the New Zealand Medical Student Journal at the time of the study. TJW is a section editor for BMC Medical Education but had not role in the review or editorial decisions for this paper.